Fifteen-minute consultation: congenital nasolacrimal duct obstruction
Asimina Mataftsi, Paraskevi Malamaki, Ioannis T Tsinopoulos, Chrysanthos Symeonidis, Stavros A Dimitrakos, Nikolaos Ziakas
Archives of Disease in Childhood - Education and Practice Apr 2014, 99 (2) 42-47; DOI: 10.1136/archdischild-2012-303417